2022-11-07_PERMIT FILE - M2022001 ‎(13)‎

• Permit No: M2022001
• IBM Index Class Name: Permit File
• Doc Date: 11/7/2022
• Doc Name Note: Exhibit G - Water Information - Appendix B
• Doc Name: Adequacy Review Response
• From: Red Tierra Equities, LLC
• To: DRMS
• Email Name: PSH
• Email Name: JLE
• Media Type: D
• Archive: No

Table 5.1 - Underflow Calculation
Underflow Rate per Hydraulic Saturated Hydraulic
Underflow foot of Saturated Conductivity Thickness Transmissivity Gradient
Rate (cfs) Thickness(cfs/ft) (ft/d) (ft) (gpd/ft) (ft/ft)
2.55 0.03 149 90 100,000 2.6E-03
3.37 0.04 149 90 100,000 3.4E-03
7.65 0.08 446 90 300,000 2.6E-03
10.10 0.11 446 90 300,000 3.4E-03
Notes: Hydraulic gradient from Appendix C, 2013 Time-Series Historic Groundwater Elevation Contour Map, CGS
Report. Transmissivity from CGS Report and Lorenz monitoring well calculations. Town width is 6,375 feet. Saturated
thickness estimated at 90 feet based on nearby well depths and water levels. Underflow rate=transmissivity`hydraulic
gradient'town width.
Table 5.2 - Summaryof Theis E uation Superposition Model Results
T= 100,000 gpd/ft T= 300,000 gpd/ft
Location Target
Drawdown (ft) Rate Simulated Rate Simulated
(gpm) Drawdown (ft) (gpm) Drawdown (ft)
Proposed Wells
WWTP 9.4 785 27.1 2200 25.2
GMP/Pump St. 1 15.3 1500 45.5 2200 25.9
West Basin 4.0 - 7.5 - 8.8
RE1 10.6 - 10.6 695 14.8
Vine + 11th 8.3 - 13.2 - 12.5
Baseball Field 0.5 - 8.2 - 9.1
M+E 5.8 1022 29.5 2200 23.8
South Nelson 5.4 - 7.8 - 8.7
SW 0.0 5.2 - 6.6
Observation Points
SW-Town Boundary 0.0 2.9 - 4.6
NW-Town Boundary 0.0 - 5.4 - 7.0
SE-Town Boundary 1.5 - 4.5 - 6.0
E/C 10.4 - 10.4 - 10.5
Pump Station 2 12.6 - 12.8 - 12.6
South Birch 4.1 - 6.2 - 7.4
North Birch 1.3 - 9.3 - 10.4
Total (gpm): 3307 7295
Total (cfs): 7.4 16.3
Note: Target drawdown calculated as the target water level at location less April 2015 water level.
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